EntityManager can transparently be made asynchronous to support writing in
the standard Node async way.

(Adam Bien) Can we do annotations?

Not part of the JS language

After this question there was a bit of discussion back and forth about ways
you could annotate, use cases for using EE components in JS, but it’s clear
that it’s possible to use chunks of EE with Node.jar and all the specifics are
up for grabs right now.

It sounds like it’s hard to even get a hold of Node.jar if you work for Oracle,
and there are no plans to open source it.

Which is a pity, because more people who know Node.js and use EE could be of
use here. I know I’d like to start playing with it yesterday!